OCR Physics A G484 - The Newtonian World - 11th June 2015 Watch

Elcor
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#761
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#761
(Original post by BecauseFP)
You don't have long... though that being said I've still yet to do all of the past papers for my hardest exam (FP2), but otherwise I've done them all for every exam that I'm sitting.
I have 4 exams over the next 3 days so I can't do FPFP now. I'm just gonna cram massively. I basically understand all the stuff already, just got to fine out the edges, so to speak.
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L'Evil Fish
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(Original post by Elcor)
I have 4 exams over the next 3 days so I can't do FPFP now. I'm just gonna cram massively. I basically understand all the stuff already, just got to fine out the edges, so to speak.
I think you'll be surprised by the past papers! They're much much easier than I thought they would be
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jeopardy
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(Original post by L'Evil Fish)
I think you'll be surprised by the past papers! They're much much easier than I thought they would be
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Elcor
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(Original post by L'Evil Fish)
I think you'll be surprised by the past papers! They're much much easier than I thought they would be
That would be nice! I've already done 5/8 of them, but only once each.
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L'Evil Fish
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(Original post by jeopardy)
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Well done you can read :yy:
(Original post by Elcor)
That would be nice! I've already done 5/8 of them, but only once each.
Oh I thought you hadn't done any?
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Raizel
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Unit 4
http://www.mathsmadeeasy.myzen.co.uk...obbie-Peck.pdf
https://b1a3c7824d6ff508e2bd2668b57b...%20A-Level.pdf

Unit 5
http://www.mathsmadeeasy.myzen.co.uk...obbie-Peck.pdf
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Elcor
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(Original post by L'Evil Fish)
Oh I thought you hadn't done any?
I just haven't started my one-after-the-other-after-the-other until my mental health is destroyed technique.
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MO2898
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(Original post by Makashima)
Explain why the circular motion of the conical pendulum has the same frequency as a simple pendulum ?

Any takers
Can you use units (dimensional analysis) to prove this? If so then I think I have an answer:

Edit: I'd then K.O. that with a statement like "therefore, when both pendulums having the same length are in a gravitational field of the same strength, the frequencies of both would be identical".

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shorty.loves.angels
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(Original post by Makashima)
Explain why the circular motion of the conical pendulum has the same frequency as a simple pendulum ?

Any takers
As ^

Think about what frequency is dependent on and then relate that to simple/ conical. You should find that both have the same dependency
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Jmw123
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#770
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#770
Anything like this for G484? http://www.thestudentroom.co.uk/show....php?t=2715379
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Elcor
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NASA thing about to launch live for all you physics nerds:
http://www.iflscience.com/space/here...er-test-launch

This counts as revision
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Makashima
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#772
internal energy, the sum of the KE and the PE

in an atom
in a body
in a object

which one???
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Jim997
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(Original post by Makashima)
internal energy, the sum of the KE and the PE

in an atom
in a body
in a object

which one???
In a system ?
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dudeman1
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(Original post by Makashima)
internal energy, the sum of the KE and the PE

in an atom
in a body
in a object

which one???
all molecules in a body
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saeed97
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#775
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#775
Any people have a complete definitions document for g484 (and g485) that they could share with a brother?
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Leechayy
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#776
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#776
Assuming an experiment comes up, what experiments are there?:confused:

Minus the s.h.c of a solid/liquid as it came up last year

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fernmaddison
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#777
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#777
why is the gradient of a substance with a greater shc steeper?
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Jim997
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(Original post by fernmaddison)
why is the gradient of a substance with a greater shc steeper?
For a temperature time graph 1/gradient is the shc!!
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MO2898
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(Original post by fernmaddison)
why is the gradient of a substance with a greater shc steeper?
Depends for which graph.
Specific heat capacity is the energy required to change the temperature of one kilogram a substance by one kelvin.
If it's a Temperature against Energy (or equivalent) graph then the gradient will be steeper because each kg of that substance needs more energy to heat up, compared to a substance of lower SHC.

Mathematically:
dE = m c dT
comparing with y=mx+c,
y-axis is Energy and x-axis is temp., so gradient is mc (mass times SHC)
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Tazmain
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#780
Do you guys use any other past papers other than the standard ones from our spec?
I've run out
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